Lock #10 is unique in that it is a double-lock, with two chambers to raise and lower boats. At least half a million gallons are displaced in each step of the process.

Atlas Obscura recently published a piece I wrote about the old lock system still in use up and down the Muskingum River in southeastern Ohio. The locks are operated by hand and require the skills of a lockmaster, who stays on site to help the estimated 7,000 annual boaters traverse the dams that make the river navigable.

It’s always a pleasure to pore through dusty old archives and historical collections, and this certainly holds true when investigating the interesting history of my beautiful hometown! Thanks to the various historians and lock enthusiasts for talking to me, and to Tim Curtis for showing me how it all works!